Tag: Navy (Page 3 of 52)

IPN Update + Protein & Dialysis

My wife, Linda, received a phone call from our IPN provider, Pentec Health. She was informed that we would receive a shipment of three of their protein-enhanced five-liter dialysis bags today/Tuesday, and four on Friday. Assuming Lowe’s delivers the refrigerator on Tuesday, we should be good. Also, we are to receive a phone call this afternoon at 1330 to bring us up to speed on the IPN gambit.

In doing research on IPN, a basic question arises. To wit, why do I need this? Why am I not getting enough protein via my diet, which lately has seen a large increase in protein-rich foods? What’s going on here?

I turned to Perplexity with the following Prompt and response:

Prompt: Is it possible that peritoneal dialysis reduces body protein to the extent that the patient is weak, gets winded after the slightest exertion, etc.

Peritoneal dialysis (PD) can contribute to significant protein loss, which may lead to muscle wasting, weakness, and fatigue. Here’s a detailed analysis:

Protein Loss in Peritoneal Dialysis

  • PD patients lose 5–7 grams of protein daily through dialysate, primarily albumin217.
  • This loss occurs because the peritoneum allows serum proteins to leak into the dialysis fluid during exchanges27.

Mechanisms Linking Protein Loss to Weakness

  1. Muscle Wasting (Sarcopenia)
    • Chronic protein loss exacerbates protein-energy wasting, reducing muscle mass and strength37.
    • Uremia, inflammation, and hormonal imbalances further accelerate muscle breakdown34.
  2. Fatigue and Exertional Limitations
    • Protein depletion impairs muscle repair and energy metabolism, causing fatigue and breathlessness during minimal exertion456.
    • Anemia (common in dialysis) reduces oxygen delivery, worsening fatigue6.
  3. Inflammation and Metabolic Dysfunction
    • Chronic inflammation from PD increases catabolism (muscle breakdown)37.
    • Acidosis and insulin resistance further disrupt protein synthesis34.

Contributing Factors

  • Fluid Overload: Exacerbates protein loss and inflammation7.
  • Inadequate Nutrition: PD patients require 1.3g/kg/day of protein to offset losses1. Failure to meet this accelerates muscle loss.
  • Physical Inactivity: A vicious cycle where fatigue reduces activity, further diminishing muscle mass45.

Management Strategies

  • Nutritional Intervention: High-protein diets (e.g., eggs, lean meats) to counter losses13.
  • Exercise: Resistance training preserves muscle mass and reduces fatigue56.
  • Volume Control: Optimizing fluid removal minimizes overhydration-related protein leakage7.

Conclusion

Yes, peritoneal dialysis can deplete body proteins sufficiently to cause weakness and exertional intolerance. This stems from direct protein loss, compounded by inflammation, metabolic dysregulation, and inadequate nutritional compensation. Addressing protein intake, volume status, and physical activity is crucial to mitigate these effects2137.

  1. https://www.dpcedcenter.org/wp-content/uploads/2021/02/Protein-and-Dialysis.pdf
  2. https://pmc.ncbi.nlm.nih.gov/articles/PMC3082414/
  3. https://pmc.ncbi.nlm.nih.gov/articles/PMC12005912/
  4. https://pmc.ncbi.nlm.nih.gov/articles/PMC2582327/
  5. https://www.nhs.uk/tests-and-treatments/dialysis/side-effects/
  6. https://www.dpcedcenter.org/news-events/news/conquering-dialysis-fatigue/
  7. https://pmc.ncbi.nlm.nih.gov/articles/PMC9178188/
  8. https://www.sciencedirect.com/science/article/pii/S0085253815324741
  9. https://onlinelibrary.wiley.com/doi/10.1111/sdi.13194
  10. https://www.frontiersin.org/journals/medicine/articles/10.3389/fmed.2021.653807/full
  11. https://www.mdpi.com/2077-0383/12/7/2670
  12. http://www.davita.com/treatment-services/peritoneal-dialysis/protein-and-your-peritoneal-dialysis-diet
  13. https://advancingdialysis.org/peritoneal-dialysis/nutritional-status-concerns-for-peritoneal-dialysis-patients/
  14. https://www.kidney.org/kidney-topics/getting-more-protein-while-dialysis
  15. https://homedialysis.org/news-and-research/blog/547-muscle-stiffness-in-dialysis-patients-tips-to-prevent-and-overcome
  16. https://onlinelibrary.wiley.com/doi/10.1155/2014/614846

What Are We Expecting: The IPN Forthcoming?

As I have been blogging about, I am in the throes of entry into the world of IPN. The refrigerator to cool the mixture is due to arrive tomorrow from Lowe’s. We expect to hear soon from Pentec to receive the training they provide for IPN usage. Soon to follow this should be the actual receipt of our weekly allotment of IPN-fused dialysis bags.

In preparation for our IPN gig, I quizzed Perplexity about the nuts and bolts of IPN actual use with the following Prompt and results. Doesn’t seem to be all that complicated after all.

Prompt: What are the nuts and bolts of actually using IPN from Pentec?

The nuts and bolts of actually using IPN (Intraperitoneal Nutrition) from Pentec Health involve several key steps and considerations to ensure safe and effective therapy for peritoneal dialysis patients who need additional protein supplementation:

What is IPN from Pentec?

  • IPN is a nutritional therapy that adds protein directly into the peritoneal dialysis fluid (dialysate) by replacing some of the usual dextrose with protein. This helps replenish protein losses that dialysis patients experience and supports nutritional status without requiring oral intake123.

How IPN is Prepared and Delivered

  • Pentec Health prepares customized IPN bags based on the patient’s specific dialysis regimen and nutritional needs. A Pentec nurse or pharmacist compounds the sterile bags by adding protein to the patient’s cycler or CAPD bag, removing some dextrose to maintain fluid balance14.
  • The IPN bags are shipped weekly to the patient’s home and must be refrigerated between 36-46°F. Pentec provides a refrigerator for storage. Patients are instructed to inspect bags for damage or discoloration immediately upon delivery and before use25.

Administration of IPN

  • IPN is typically administered daily at home as a replacement for one of the patient’s regular exchange bags, either manually or via cycler. Patients are trained on how to handle and infuse the bags safely25.
  • The IPN bag is usually the first bag on the cycler machine or hung to replace one exchange5.

Monitoring and Clinical Support

  • Pentec provides a clinical case manager and registered dietitians who work closely with the patient’s nephrologist and dialysis clinic. They:
    • Confirm patient eligibility and customize the IPN prescription.
    • Monitor nutritional status through labs (e.g., albumin levels) and clinical assessments.
    • Adjust therapy as needed based on patient response.
    • Help manage any side effects, such as dehydration, which can occur if IPN causes additional ultrafiltration14.
  • Fluid removal goals during dialysis are adjusted carefully. For example, for IDPN (similar therapy for hemodialysis), 75-80% of the total volume is suggested to be removed; similar judgment applies to IPN fluid management14.

Duration and Goals of Therapy

  • The length of IPN therapy varies per individual and depends on nutritional needs and response. Typically, improvements in appetite, strength, and energy are expected within a few months2.
  • Once protein levels normalize, clinicians may consider discontinuing or pausing therapy to see if nutrition can be maintained independently1.

Insurance and Financial Considerations

  • IPN therapy is covered by many commercial and Medicaid insurance plans. Pentec Health handles billing directly and offers flexible payment options and assistance programs if needed2.

Summary Table of Key Steps in Using Pentec IPN

StepDescription
PrescriptionNephrologist and dietitian determine need; PD nurse completes IPN prescription form with Pentec CCM
PreparationPentec compounds sterile, patient-specific IPN bags by adding protein and removing dextrose
Delivery & StorageWeekly home shipment; refrigerate at 36-46°F; inspect bags for damage or discoloration
AdministrationReplace one PD exchange bag daily with IPN bag; use cycler or manual exchange
Monitoring & SupportRegular lab tests (albumin), clinical assessments, therapy adjustments by Pentec clinical team
Side Effect ManagementWatch for dehydration or other issues; clinical team intervenes as needed
DurationIndividualized; often several months until nutritional goals met
Insurance & BillingPentec handles insurance; offers payment plans and assistance

In essence, using Pentec’s IPN involves a coordinated clinical approach with personalized sterile nutrition bags integrated into the patient’s peritoneal dialysis routine, supported by ongoing clinical monitoring and patient education to optimize nutritional outcomes safely and effectively1245.

  1. https://pentechealth.com/idpnipn/
  2. https://pentechealth.com/media/hi4hdpco/23pen01008-0124-ipn-patient-brochure.pdf
  3. https://pentechealth.com/newsroom/idpn-ipn-nutrition-therapy-for-dialysis-patients-what-s-the-difference/
  4. https://pentechealth.com/renal-nutrition-faqs/
  5. https://pentechealth.com/media/lxgjflej/23pen01071_ipn-home-therapies.pdf
  6. https://pentechealth.com
  7. https://pentechealth.com/media/bfolvrox/pentechealth_guide-to-idpn.pdf
  8. https://www.pharmko.com/blog/understanding-intraperitoneal-nutrition-ipn-and-its-uses
  9. https://pentechealth.com/dialysis-clinics/
  10. https://pentechealth.com/media/g0kbui5t/patient-and-hcp-proplete-info-sheets.pdf
  11. https://www.pharmko.com/blog/how-ipn-supports-patients-with-severe-malnutrition
  12. https://pentechealth.com/clinical-assistance-program/
  13. https://www.pharmko.com/blog/how-to-monitor-and-adjust-ipn-for-optimal-patient-outcomes
  14. https://pentechealth.com/patient-information/
  15. https://pentechealth.com/patient-education/
  16. https://www.kidneywi.org/wp-content/uploads/2020/11/How-IDPN-and-IPN-Can-Benefit-Your-Patinets.pdf
  17. https://www.reddit.com/r/dietetics/comments/17f4zgj/renal_question_idpn/

Peritoneal Dialysis and Protein Loss

This blog follows along with my recent prescription to incorporate more protein in my diet to raise my albumin to acceptable levels. It is currently in the mid-threes, where it should be a minimum of five. I also have the lingering question of cause and effect of protein loss and my current tiredness and general lack of git up and go.

To look into this aspect of our dialysis burden, I turned to Perplexity with the following Prompt and result – spoiler – they go hand in glove:

Prompt: Is it possible that peritoneal dialysis reduces body protein to the extent that the patient is weak, gets winded after the slightest exertion, etc?

Peritoneal dialysis (PD) can contribute to significant protein loss, which may lead to muscle wasting, weakness, and fatigue. Here’s a detailed analysis:

Protein Loss in Peritoneal Dialysis

  • PD patients lose 5–7 grams of protein daily through dialysate, primarily albumin217.
  • This loss occurs because the peritoneum allows serum proteins to leak into the dialysis fluid during exchanges27.

Mechanisms Linking Protein Loss to Weakness

  1. Muscle Wasting (Sarcopenia)
    • Chronic protein loss exacerbates protein-energy wasting, reducing muscle mass and strength37.
    • Uremia, inflammation, and hormonal imbalances further accelerate muscle breakdown34.
  2. Fatigue and Exertional Limitations
    • Protein depletion impairs muscle repair and energy metabolism, causing fatigue and breathlessness during minimal exertion456.
    • Anemia (common in dialysis) reduces oxygen delivery, worsening fatigue6.
  3. Inflammation and Metabolic Dysfunction
    • Chronic inflammation from PD increases catabolism (muscle breakdown)37.
    • Acidosis and insulin resistance further disrupt protein synthesis34.

Contributing Factors

  • Fluid Overload: Exacerbates protein loss and inflammation7.
  • Inadequate Nutrition: PD patients require 1.3g/kg/day of protein to offset losses1. Failure to meet this accelerates muscle loss.
  • Physical Inactivity: A vicious cycle where fatigue reduces activity, further diminishing muscle mass45.

Management Strategies

  • Nutritional Intervention: High-protein diets (e.g., eggs, lean meats) to counter losses13.
  • Exercise: Resistance training preserves muscle mass and reduces fatigue56.
  • Volume Control: Optimizing fluid removal minimizes overhydration-related protein leakage7.

Conclusion

Yes, peritoneal dialysis can deplete body proteins sufficiently to cause weakness and exertional intolerance. This stems from direct protein loss, compounded by inflammation, metabolic dysregulation, and inadequate nutritional compensation. Addressing protein intake, volume status, and physical activity is crucial to mitigate these effects2137.

  1. https://www.dpcedcenter.org/wp-content/uploads/2021/02/Protein-and-Dialysis.pdf
  2. https://pmc.ncbi.nlm.nih.gov/articles/PMC3082414/
  3. https://pmc.ncbi.nlm.nih.gov/articles/PMC12005912/
  4. https://pmc.ncbi.nlm.nih.gov/articles/PMC2582327/
  5. https://www.nhs.uk/tests-and-treatments/dialysis/side-effects/
  6. https://www.dpcedcenter.org/news-events/news/conquering-dialysis-fatigue/
  7. https://pmc.ncbi.nlm.nih.gov/articles/PMC9178188/
  8. https://www.sciencedirect.com/science/article/pii/S0085253815324741
  9. https://onlinelibrary.wiley.com/doi/10.1111/sdi.13194
  10. https://www.frontiersin.org/journals/medicine/articles/10.3389/fmed.2021.653807/full
  11. https://www.mdpi.com/2077-0383/12/7/2670
  12. http://www.davita.com/treatment-services/peritoneal-dialysis/protein-and-your-peritoneal-dialysis-diet
  13. https://advancingdialysis.org/peritoneal-dialysis/nutritional-status-concerns-for-peritoneal-dialysis-patients/
  14. https://www.kidney.org/kidney-topics/getting-more-protein-while-dialysis
  15. https://homedialysis.org/news-and-research/blog/547-muscle-stiffness-in-dialysis-patients-tips-to-prevent-and-overcome
  16. https://onlinelibrary.wiley.com/doi/10.1155/2014/614846

Question Is: How fast does IPN Work?

My wife and I are in discussions about the new routine we’re about to embark upon, that of IPN. We debated how long it takes for it to take effect, so to speak. Is a day, a week, a month, or longer.

To obtain a definitive answer to this question, I turned to Perplexity with the following Prompt and response. Spoiler – it will take some time.

Prompt: How rapidly does IPN take effect? days, weeks, months?

Intraperitoneal Nutrition (IPN) typically takes several weeks to months to show measurable effects in patients on peritoneal dialysis. Here’s what the evidence and clinical experience indicate:

  • Improvements in nutritional markers such as serum albumin and prealbumin—key indicators of protein status and overall nutrition—are generally observed after several months of IPN therapy.
  • Positive changes in strength, physical health, and appetite are commonly reported by patients, but these also tend to develop over the course of months rather than days or a few weeks.
  • Clinical monitoring is usually performed at least quarterly (every three months), and the goal is often to see an albumin increase to around 4.0 g/dL. The time to reach this target varies, but most patients require ongoing therapy for a minimum of 3 months, with many continuing for longer depending on their response and nutritional needs.
  • Incremental improvements—such as a 0.2 g/dL increase in albumin—are considered clinically meaningful and can be seen during this period, with about 70% of patients in one cohort showing such improvements within several months.
  • If there is no significant improvement after 3 to 6 months, clinicians may consider discontinuing IPN and exploring alternative interventions.

In summary:
Most patients will not see immediate effects within days; meaningful improvements typically require several weeks to months of consistent IPN therapy. The exact timeline can vary based on the individual’s baseline nutritional status, the degree of malnutrition, and how well they tolerate and absorb the therapy.

Due Dilligence Hemo

Since the hand started writing on the wall that Hemo is looming in my future, now is the time to start investigating it. Thus far I have ascertained that Fresenius, my company support provider, has two models that it uses, the NxStage Versi HD and the NX System One. Regardless of which one is provided, patients can essentially opt for either daytime or nighttime usage. Therefore, our decision tree involves selecting a model and then selecting a use.

To aid and abet in our decision process, I turned to Perplexity with the following Prompt and results. Note that I was informed by Fresenius that they assign Nxs based on their inventory at the time the request is submitted, making choice problematic. Spoiler – at this point, it looks like VersiHD and night is best for me.

Prompt: I am a 3-year peritoneal dialysis patient. informed by my dialysis team that soon I may have to switch to home hemo. Fresensis, my dialysis company, provides either NxStage Versi HD or System One, depending on what they have. Which is better for me, and should I go for night or day?

If you are transitioning from peritoneal dialysis (PD) to home hemodialysis (HHD) with Fresenius, your main options will be the NxStage VersiHD or System One. Both are designed for home use, but there are important differences and considerations for choosing between them, as well as deciding between daytime and nocturnal (overnight) dialysis.

NxStage VersiHD vs. System One

FeatureNxStage VersiHDNxStage System One
PortabilityDesigned for easier learning, skill retention, and less risk of contaminationCompact, portable
Dialysate optionsPre-mixed bags, PureFlow SLPre-mixed bags, PureFlow SL
Ease of useEnhanced touchscreen, GuideMe softwareSimple interface, “Guide Me” steps
Data managementNx2me app, automatic data transferNx2me app, automatic data transfer
TrainingFaster, more intuitive with GuideMeStraightforward, but less advanced
FDA clearanceApproved for nocturnal and solo useApproved for nocturnal and solo use
MaintenanceDisposable cartridge, minimal cleaningDisposable cartridge, minimal cleaning
User experienceDesigned for easier learning, skill retention, less risk of contaminationWell-established, widely used
  • VersiHD is the newer generation, featuring a more intuitive touchscreen interface, advanced GuideMe software for step-by-step instructions, and streamlined training. It’s designed to be easier for new users and care partners to learn and retain skills, with features that reduce the risk of contamination and simplify setup and cleaning123.
  • System One is the original NxStage portable HHD machine, also user-friendly and portable, but with a less advanced interface. It remains reliable and effective, especially for patients already familiar with NxStage systems456.

Both systems are FDA-cleared for day or night use, with similar clinical outcomes and safety profiles46. VersiHD’s newer software and interface may make it preferable if you are new to home hemo or want the easiest possible transition.

Daytime vs. Nocturnal (Night) Home Hemodialysis

Daytime HHD

  • Typically involves shorter (3–4 hour) sessions, 4–6 times per week.
  • Leaves nights free, but requires time during the day.
  • May be more familiar if you’re used to daytime PD exchanges.
  • Can be more flexible for people with variable sleep schedules or those who prefer to monitor their treatment closely78.

Nocturnal HHD

  • Performed overnight, usually 6–8 hours while you sleep, 4–6 nights per week.
  • Frees up your daytime for work, family, or activities.
  • Longer, slower treatments are gentler on your body, more closely mimic natural kidney function, and are associated with:
    • Better blood pressure and phosphorus control
    • Fewer dietary and fluid restrictions
    • Less post-dialysis fatigue and better energy
    • Improved sleep quality and overall well-being
    • Potentially longer survival compared to standard in-center HD9101112813.
  • Requires a stable sleep schedule and, in most cases, a care partner at night. Some people take time to adjust to sleeping with the machine, but alarms and safety features are built in1012.

Patient Experience

Many patients report feeling healthier and more energetic on nocturnal HHD, with the added benefit of having their days free for other activities. The gentler, longer treatments reduce the “washed out” feeling common after conventional dialysis and may allow for a more liberal diet11128.

Which Is Better for You?

  • VersiHD is likely the better choice if you want the latest technology, easier training, and enhanced support features. Its design is especially helpful for new home hemo patients and those who value simplicity and clear instructions123.
  • System One remains a solid option, especially if VersiHD is not available; both provide similar clinical outcomes46.
  • Nocturnal HHD is generally preferred for those who want the best health outcomes, more flexibility, and a lifestyle closer to normal kidney function—if you can accommodate overnight treatments and have a care partner9101112813.
  • Daytime HHD may be better if your sleep is disrupted, you don’t have a care partner at night, or you simply prefer to keep nights free for rest78.

Recommendations

  • Discuss your body weight, home environment, and lifestyle needs with your care team. For patients over 60 kg, achieving dialysis adequacy on NxStage may require longer or more frequent sessions, which is easier to accomplish with nocturnal treatments6.
  • If you value the most intuitive, modern system and easier training, ask for the VersiHD if available.
  • If you want to maximize your energy, minimize dietary restrictions, and have your days free, nocturnal HHD is likely the best fit—provided you can sleep with the machine and have a care partner9101112813.
  • If you have concerns about sleeping with the machine or lack a care partner, daytime HHD is still a strong option78.

In summary: Both NxStage VersiHD and System One are excellent, portable systems for home hemodialysis, with VersiHD offering a more user-friendly, modern experience. Nocturnal HHD provides the most health and lifestyle benefits for many patients, but your choice should ultimately reflect your personal needs, home situation, and preferences. Your care team can help guide you through training and setup for either option14923128.

  1. https://freseniusmedicalcare.com/en-us/products/treating-with-home-hemodialysis/home-hemodialysis-products/versihd/
  2. https://hometherapies.freseniusmedicalcare.com/home-dialysis-systems/versihd/
  3. https://freseniusmedicalcare.com/en/media/newsroom/fresenius-medical-care-grows-number-of-u-s–patients-using-company-s-home-hemodialysis-machines–launches-nxstage–versi-hd-with-guideme-software/
  4. https://pmc.ncbi.nlm.nih.gov/articles/PMC11020435/
  5. https://freseniusmedicalcare.com/en-us/products/treating-with-home-hemodialysis/home-hemodialysis-products/nxstage-system-one/
  6. https://www.scirp.org/journal/paperinformation?paperid=101285
  7. https://aakp.org/short-daily-home-hemodialysis/
  8. https://www.kidney.org/kidney-topics/home-hemodialysis
  9. https://hometherapies.freseniusmedicalcare.com/home-hemodialysis/nocturnal-hhd/
  10. https://homedialysis.org/news-and-research/blog/513-the-benefits-of-dialyzing-while-you-sleep
  11. https://www.kidneyresearchuk.org/case-studies/nocturnal-dialysis-a-patients-experience/
  12. https://homedialysis.org/home-dialysis-basics/nocturnal-home-hemodialysis
  13. https://pmc.ncbi.nlm.nih.gov/articles/PMC3569086/
  14. https://forums.homedialysis.org/t/nxstage-vs-fresenius/745
  15. https://www.youtube.com/watch?v=fYTlaB1JiB0
  16. https://pmc.ncbi.nlm.nih.gov/articles/PMC9937637/
  17. https://www.reddit.com/r/dialysis/comments/11dd5bx/experience_with_nxstage_versihd_or_system_one/
  18. https://forums.homedialysis.org/t/concerns-with-the-nxstage-system-one/2924
  19. https://pubmed.ncbi.nlm.nih.gov/22613922/
  20. https://www.kidney.org/kidney-topics/nocturnal-hemodialysis
  21. https://aakp.org/dialysis-while-you-sleep-an-alternative-therapy/
  22. https://homedialysis.org/home-dialysis-basics/machines-and-supplies/hemodialysis-machines
  23. https://www.medicalexpo.com/prod/nxstage-medical/product-81164-1078249.html
  24. https://finance.yahoo.com/news/fresenius-medical-care-stock-rises-164700077.html
  25. https://www.massdevice.com/fresenius-launches-new-home-hemodialysis-system/
  26. https://en.wikipedia.org/wiki/Home_hemodialysis
  27. https://www.nice.org.uk/guidance/mib12/resources/the-nxstage-system-one-nx10001-home-haemodialysis-device-for-renal-replacement-therapy-in-chronic-kidney-disease-pdf-63498981303493
  28. https://pmc.ncbi.nlm.nih.gov/articles/PMC6452820/

Friday’s Off Topic Day: Origin of R&B

As the title suggests, from time to time, I go off the topic of my dialysis journey. Today is no exception. I’m going to relate to you a little of the background from my formative years, the mid-fifties, when I was 15-17, and a sophomore-senior in high school.

Quite often during the time frame suggested, a small group of boys who were also into fast cars would meet in a friend’s garage (Paul Hinton to be exact) where we would discuss cars, girls, drink beer, play poker, and listen to radio station WLAC Nashville. Guys would drop in after dates, with some bringing their female friends with them. All through this, WLAC took front and center. So what’s with WLAC of yore? WLAC was, at the time, at the front of R&B. It brought R&B to the public’s attention and ours. In short, we listened to artists and music long before it reached the airwaves in Springfield, Ohio. WolfMan Jack hadn’t been invented, but WLAC had. Since WLAC played such a pivotal role in my early music listening, it is worth looking back to see where I am now. I quizzed Perplexity with the following Prompt and results. Following at bottom is a clip from Bo Diddley on how he got started. He was one of the artists on WLAC early on. I also inserted a Howlin’ Wolf rendition to give you a flavor of the tunes coming across from WLAC at the time.

Prompt: In the 50s, there was a station in Nashville, WLAC, that played real R&B sponsored by “white rose petroleum jelly” Tell us about this

John R American radio disc jockey who attained fame in the ...
WLAC - Wikipedia
How America Got Its First Black Radio Station - Atlas Obscura
Radio, TV and the Nashville R&B Scene (Part Two) - E. Mark ...
Bill "Hoss" Allen - Wikipedia

WLAC and Its Pioneering R&B Broadcasts in the 1950s

WLAC was a Nashville, Tennessee, powerhouse AM radio station (1510 AM) that became legendary in the 1950s for broadcasting rhythm and blues (R&B) music across much of the United States, especially at night when its 50,000-watt clear-channel signal reached up to 28 states, parts of Canada, and the Caribbean. WLAC played a crucial role in introducing Black R&B music to both Black and white audiences during a time of deep segregation and limited access to such music on mainstream radio.

The WLAC R&B Format

  • Programming: Starting in the mid-1940s and peaking through the 1950s and 1960s, WLAC’s nighttime airwaves were dominated by a quartet of white DJs—Gene Nobles, John Richbourg (known as “John R.”), Bill “Hoss” Allen, and Herman Grizzard—who played records by Black artists such as Chuck Berry, Fats Domino, Little Richard, Muddy Waters, and Etta James.
  • Audience: The station’s management deliberately targeted Black listeners, knowing their signal reached 80% of Black homes in the country at night. However, the shows also attracted a large number of white teenagers, many of whom were hearing authentic R&B for the first time.
  • Cultural Impact: WLAC’s broadcasts helped lay the groundwork for the rock and roll explosion, influencing future musicians and helping to bridge racial divides in American popular music.

Sponsorship and “White Rose Petroleum Jelly”

  • Advertising Approach: The DJs’ shows were heavily sponsored by products marketed to Black consumers, many of which were sold via mail order and promoted with colorful, sometimes humorous, and often suggestive on-air pitches.
  • White Rose Petroleum Jelly: Among the most famous sponsors was “White Rose Petroleum Jelly,” a brand of white petroleum jelly. The DJs would read lively and sometimes double-entendre-filled commercials for this product, joking about its many supposed uses. The playful, sometimes risqué nature of these ads became part of the station’s mystique and appeal, especially among teenagers who felt they were part of a secret, subversive listening club.
  • Other Products: Alongside White Rose Petroleum Jelly, the station also advertised products like Royal Crown Hair Pomade and even live baby chicks, all targeting the station’s core late-night audience.

Business Model and Legacy

  • Mail-Order Economy: Much of the station’s revenue came from mail-order businesses, such as Randy’s Record Mart, which became the nation’s largest mail-order record seller thanks to WLAC’s reach and influence.
  • Social Change: While the DJs and station management profited from Black music and audiences, many Black musicians appreciated the exposure and career opportunities WLAC provided, even as the station’s aggressive product promotion sometimes took advantage of its listeners.
  • Enduring Influence: WLAC’s R&B shows were instrumental in breaking down racial barriers in American music, inspiring countless musicians (including Bob Dylan and members of The Band) and helping to usher in the rock and roll era.

“During the hours not sponsored by record shops, WLAC featured a whole slew of wonderful commercials for such things as… ‘live baby chicks,’ ‘Royal Crown Hair Dressing’ and ‘White Rose Petroleum Jelly.’ The disc jockeys used to have a lot of fun mentioning creative uses for that versatile substance, many with double entendre meanings.”

Summary Table: WLAC R&B Era Highlights

FeatureDetails
LocationNashville, Tennessee (not Memphis)
Era1940s–1970s (peak R&B influence in 1950s–60s)
Signal Reach50,000 watts; up to 28 states, Canada, Caribbean at night
Key DJsGene Nobles, John Richbourg (“John R.”), Bill “Hoss” Allen, Herman Grizzard
AudiencePrimarily Black listeners, but also white teenagers across the eastern U.S.
Notable SponsorsWhite Rose Petroleum Jelly, Royal Crown Hair Pomade, Randy’s Record Mart, live chicks
LegacyBroke racial barriers, fueled R&B/rock crossover, influenced generations of musicians

WLAC’s nightly R&B programming, with its iconic product pitches for items like White Rose Petroleum Jelly, stands as a pivotal chapter in American radio and music history, shaping tastes and breaking down social barriers in the mid-20th century.

Status of Wearable Glucose Monitors for Dialysis Patients

Since I am no longer taking the oral medication Januvia, my GP suggested I keep a close eye on my glucose to make certain it remains within limits. You may recall from several previous blogs you can search on herein, that in the past I have paid for wearable glucose monitors myself, then Medicare started to pay, and I used one for about two years. Then, somehow, the FDA got involved and stated that the devices had not been cleared for those of us on dialysis. Medicare pulled support for the devices, leaving me to go back to the old school of finger pricks. That’s where I am again. Forty years as a diabetic and nothing’s changed.

So it is of interest to me where this all now stands. I quizzed Perplexity with the following Prompt and results:

Continuous glucose monitors on the rise after FDA approval
Company's new wearable device will help diabetics eat right ...
Surge in FDA Approvals for Diabetes Devices and Product Advances
Abbott finally gets FDA greenlight for FreeStyle Libre 2 ...

Prompt: FDA Approval Status of Wearable Glucose Monitors for Dialysis Patients

No wearable continuous glucose monitors (CGMs) are specifically FDA approved for use in patients on dialysis or those with end-stage renal disease (ESRD). This is a key distinction: while several CGMs are FDA approved for people with diabetes, their use in the dialysis population remains off-label.

Details from Recent Research and FDA Statements

  • According to diabetes technology experts and recent research, “these CGM devices… are not yet FDA approved for patients with ESRD on dialysis” due to the medical complexity of this population and their exclusion from most clinical trials111.
  • Studies have shown that factory-calibrated CGMs (such as the Dexcom G6-Pro) can provide reasonably accurate glucose readings in dialysis patients, but these studies are not large enough to support FDA approval for this specific use111.
  • The FDA has not cleared or approved any smartwatch or smart ring that measures glucose non-invasively (without skin piercing), for any population, including those on dialysis29.

Currently Approved CGMs

  • The Dexcom G7, Abbott FreeStyle Libre 14-Day, and Eversense E3 are all FDA approved for people with diabetes, but not specifically for those on dialysis5671012.
  • Over-the-counter CGMs such as Dexcom Stelo and Abbott Lingo have recently been cleared, but these are not indicated for people using insulin or those with problematic hypoglycemia, and there is no mention of approval for dialysis patients38913.

Off-Label Use in Dialysis

  • Despite the lack of specific FDA approval, many clinicians and patients use CGMs off-label in the dialysis population due to their potential benefits and reasonable accuracy as shown in pilot studies111.
  • If you are considering a CGM and are on dialysis, it is essential to discuss this with your healthcare provider, as they can help interpret the readings and manage any device limitations111.

Summary Table: FDA Status of Wearable Glucose Monitors for Dialysis

Device TypeFDA Approved for General Diabetes?FDA Approved for Dialysis/ESRD?Notes
Dexcom G6/G7YesNoOff-label use in dialysis studied61011
Abbott FreeStyle LibreYesNoOff-label use in dialysis studied510
Eversense E3 (implantable)YesNoNo specific dialysis approval710
Dexcom Stelo (OTC)Yes (non-insulin users)NoNot for insulin users or problematic hypoglycemia389
Abbott Lingo (OTC)No (wellness only)NoNot for diabetes management8
Smartwatches/Smart RingsNoNoNo FDA approval for glucose measurement29

Key Takeaway

No wearable glucose monitor is FDA approved specifically for people on dialysis. However, off-label use of established CGMs is common, and emerging research supports their reasonable accuracy in this population, though further studies and regulatory review are needed before formal approval111. Always consult your healthcare provider before starting CGM use if you are on dialysis.

  1. https://newsroom.uvahealth.com/2022/06/29/off-shelf-glucose-monitors-prove-accurate-for-dialysis-patients/
  2. https://www.fda.gov/medical-devices/safety-communications/do-not-use-smartwatches-or-smart-rings-measure-blood-glucose-levels-fda-safety-communication
  3. https://www.ajmc.com/view/fda-approves-first-over-the-counter-continuous-glucose-monitor
  4. https://texasdiabetes.com/fda-approves-new-otc-continuous-glucose-monitor-cgm/
  5. https://www.abbott.com/corpnewsroom/products-and-innovation/freestyle-libre-14-day.html
  6. https://investors.dexcom.com/news/news-details/2022/Dexcom-G7-Receives-FDA-Clearance-The-Most-Accurate-Continuous-Glucose-Monitoring-System-Cleared-in-the-U.S/default.aspx
  7. https://www.fda.gov/medical-devices/eversense-e3-continuous-glucose-monitoring-system-p160048s016
  8. https://www.goodrx.com/classes/medical-supplies-and-devices/otc-continuous-glucose-monitor-faqs
  9. https://www.theregreview.org/2024/09/25/diaz-reducing-barriers-to-glucose-monitoring/
  10. https://pmc.ncbi.nlm.nih.gov/articles/PMC10012164/
  11. https://www.techtarget.com/virtualhealthcare/news/366597498/Continuous-Glucose-Monitors-Effective-RPM-for-ESRD-Patients
  12. https://www.ncbi.nlm.nih.gov/books/NBK279046/
  13. https://www.cardiometabolichealth.org/the-new-era-of-continuous-glucose-monitoring-cgm-expanding-access-and-improving-outcomes/

Rationalizing Medications

This past Wednesday, I met with my GP, followed by a monthly meeting with my Dialysis Team. For the meeting with our GP, I had a specific agenda laid out as I did with the Dialysis Team, and took the lead. In both cases, one of the THREE items on our (I say our, because my wife, as my Caregiver, was very involved in setting up the agenda for the meetings) agenda was to review the top three drugs I was taking with the thought in mind to reduce or do away with them.

The drug handout we authored is embedded below:

I am pleased to report that after some discussion, I am no longer taking Januvia for diabetes with the caveat that we’re going to watch my glucose closely. My dialysis doctor stated that the majority of her insulin-taking patients take no oral diabetic medicine. Disposing of hydro… was straightforward. My GP strongly suggested halving my statin medication, while my dialysis doctor was Ok with dropping it. As a result, I’m now taking 1/2 of what I was before the meeting.

As a result of going into the meeting with a plan and our ducks in a row, we dropped two meds altogether and reduced the third by 50%, intending to drop it entirely in the future if my cholesterol and triglyceride readings do not go bananas. A win for all of us.

Behind the Eight-Ball in Peritoneal Dialysis

My wife and I met with our GP and Dialysis Team yesterday and today. While many things were discussed, which I intend to cover here in due course, one point stuck out. My dialysis nurse stated that the peritoneal membrane, upon which the entire PD procedure depends, is no longer effective typically in the 3-5 year time frame. I am coming up on three years, so that in and of itself puts me behind the eight ball.

Reminds me of back in the day when I was on the nuclear cruiser USS Long Beach, CG(N) 9, and as part of my qualification as an OOD (Officer of the Deck Underway), we had to qualify in the nuclear plant. It was all about the half-life of the reactor core and how the reactor was controlled.

Back to PD. I quizzed Perplexity about this aspect with the following Prompt and result. Turns out she was more than right on. At some point in time, given that I live long enough, the odds are that I will be back on hemo. Oh joy!

Prompt: How long does the peritoneal membrane continue to work in peritoneal dialysis?

Duration of Peritoneal Membrane Function in Peritoneal Dialysis

Overview

The peritoneal membrane serves as the filter in peritoneal dialysis (PD), but its ability to function effectively declines over time due to ongoing exposure to dialysis solutions and complications such as peritonitis. The length of time the membrane continues to work varies between individuals, but several key findings from research help define typical expectations.

Typical Duration

  • The peritoneal membrane can function adequately for several years in most patients undergoing PD.
  • However, its efficiency tends to decline progressively, especially after 2–4 years of treatment, due to structural and functional changes in the membrane17.
  • Many patients experience a significant reduction in membrane function after about 4–5 years, which may necessitate a switch to hemodialysis257.

Factors Affecting Membrane Longevity

  • Glucose Exposure: Chronic exposure to glucose-based dialysis solutions is a major contributor to membrane deterioration, leading to fibrosis, vasculopathy, and ultrafiltration failure over time1567.
  • Peritonitis: Episodes of peritonitis (infection of the peritoneal cavity) accelerate membrane damage and can shorten the effective lifespan of the peritoneal membrane5.
  • Individual Variation: Some patients maintain good peritoneal membrane function for more than five years, especially if they avoid frequent peritonitis and maintain good residual renal function11.

Functional Decline Timeline

  • First 2 Years: Most patients maintain good peritoneal membrane function, though early changes can begin17.
  • 2–4 Years: Progressive increases in solute transport and decreases in ultrafiltration become more common, indicating early signs of membrane fatigue17.
  • After 4 Years: More pronounced reduction in ultrafiltration and transport efficiency is typical, with some patients developing complications such as encapsulating peritoneal sclerosis (EPS), a severe form of membrane failure1710.

Clinical Practice

  • There is no strict time limit for how long a patient can remain on PD, but many centers monitor membrane function regularly and consider switching to hemodialysis if ultrafiltration failure or other complications arise210.
  • Some experts advocate for a time limit on PD to reduce the risk of severe complications like EPS, but this is individualized based on patient factors and membrane performance10.

Summary Table: Peritoneal Membrane Function Over Time

Time on PDTypical Membrane StatusNotes
0–2 yearsGenerally well-preservedEarly changes possible
2–4 yearsProgressive decline beginsIncreased solute transport, reduced ultrafiltration
4+ yearsMarked decline in many patientsHigher risk of ultrafiltration failure, EPS
5+ yearsSome maintain function, many do notIndividual variation significant

Conclusion

The peritoneal membrane typically continues to work effectively for 2–4 years in most patients on peritoneal dialysis, with gradual decline thereafter. Some patients maintain adequate function for five years or longer, but the risk of ultrafiltration failure and complications increases with time, especially with repeated peritonitis or prolonged exposure to glucose-based solutions125711. Regular monitoring is essential to determine the optimal duration of PD for each patient.

  1. https://pmc.ncbi.nlm.nih.gov/articles/PMC9096116/
  2. https://www.mayoclinic.org/tests-procedures/peritoneal-dialysis/about/pac-20384725
  3. https://www.kidney.org/sites/default/files/11-50-0215_peritonealdialysis.pdf
  4. http://ispd.org/NAC/wp-content/uploads/2010/11/Anatomy-and-Physiology-of-PD-Teitelbaum-April-2011-Notes.pdf
  5. https://pmc.ncbi.nlm.nih.gov/articles/PMC4934441/
  6. https://onlinelibrary.wiley.com/doi/10.1111/jcpt.12318
  7. https://www.frontiersin.org/journals/physiology/articles/10.3389/fphys.2024.1322493/full
  8. https://www.niddk.nih.gov/health-information/kidney-disease/kidney-failure/peritoneal-dialysis
  9. https://th.mykidneyjourney.com/en-TH/peritoneal-dialysis-home
  10. https://journals.sagepub.com/doi/10.3747/pdi.2017.00018
  11. https://www.sciencedirect.com/science/article/pii/S0085253815308607

Second Caregive Phone Interview

This past Friday, as scheduled, my wife and I had a one-hour and fifteen-minute phone interview with the social worker representing the VA’s Caregiver Program. I was first up. She interviewed what was obviously a script, and questions at first centered on how I feel, how a normal 24-hour day goes, what my caregiver did to aid and abet my daily activities, etc. It then turned to shades of mental health and suicidal thoughts, and included a question about whether we had a gun or guns in the home. She then talked with my wife, asking about 80% of the same type of questions.

After the interview, she informed us in some detail about what’s coming down the pike. Next up is a video interview by a nurse to go over in more detail health issues, then a panel of representatives from various domains in the VA, and lastly, possibly a home visit. After these activities, we will either be informed by this rep that we were accepted into the program, or receive a detailed letter explaining why we were not. If not, we can either appeal or, if so desired, reapply.

Up to now, the two interfaces with the VA leave the impression that they are pretty much sticking to their script and are not all that interested in anything off script. It’s as though my wife, as my caregiver, could have her finger in the dike of my life, and if this did not fit into a box on their form, they would be indifferent to it.

« Older posts Newer posts »