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The latest Nephrology Self-Assessment Program (nephSAP) issue, Volume 24: Issue 2 (May 2025): Hypertension is now available online.
RE: treatment for hypophosphatemia 5 hours ago
I agree 100% with Dr. Rodby's assessment and recommendations. ------------------------------ Richard Glassock MD, FASN Laguna Woods CA (949) ...
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RE: treatment for hypophosphatemia 6 hours ago
This seems like a board question , almost too good, so depending on the IV iron it may stimulate FGF 23 (set attached) I would get a FGF 23 l...
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treatment for hypophosphatemia 9 hours ago
Good afternoon, A pt with h/o IV iron exposure has developed hypophosphatemia. Is currently on 200 mg elemental phosphorus/day PO and iv kphos...
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RE: C3 or IgA 13 hours ago
This exercise is generating a lot of misinformation. At least it has been decided that CFHR variants have a positive association with IgAN, not the...
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RE: C3 or IgA 1 day ago
KN 55 staining has high specificity but lower sensitivity for identifying Primary IgAN (or IgAV) so only positive staining would have pathogenic si...
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RE: C3 or IgA 1 day ago
I think it may be available at Arkana by request,. Both of these cases were outside the USA. ------------------------------ Richard Glassock MD, ...
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RE: ANCA vasculitis with Pulmonary Hemorrhage - To Rituximab or MMF 1 day ago
I discussed with hematologist, he is of the view to err on the side of caution in view of the HBV serology and closely watch HBV serology gor 6 mon...
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RE: C3 or IgA 1 day ago
How available is KM55 in the US? Most reports are from China, Japan and India. Thanks. Mario ------------------------------ Mario Rubin, M.D. Hou...
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RE: C3 or IgA 1 day ago
Thanks for allowing me to get a little more sleep. One way to better understand the two cases would be to stain the kidney biopsy with IgA deposits...
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RE: C3 or IgA 1 day ago
With a CFHR5 mutation, the patient could have presented with C3 or IgA . I would have expected Pegcetacoplan to have the pathways leading to expres...
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RE: C3 or IgA 1 day ago
I don't think we can have a proper answer to that. There are case reports of CFH mutations with C3GN becoming HUS after kidney transplant. These ar...
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RE: C3 or IgA 1 day ago
Thank you, but am still waiting for an explanation on how he went from C3 deposits , to IgA deposits after treatment with C3 inhibitors .. no point...
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RE: C3 or IgA 1 day ago
Centogene has reported it as a VUS. I think you should get this published to add to the literature on this variant. ClinVar has reported this as be...
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RE: C3 or IgA 1 day ago
Centrogene- from Germany has reported on it .. please see attachment --------------------------------- Dr. Hormaz Dastoor. MD, FASN Nephrology Co...
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RE: C3 or IgA 1 day ago
Thanks for the genetic update. CFHR5 486dup is described as a variant of uncertain significance. There are also reports stating that it is benign. ...
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RE: C3 or IgA 1 day ago
Thanks .. let's wait for the Professor to wake up and give a response ... I bet he is thinking over the possibilities while he lays in bed . ----...
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RE: C3 or IgA 1 day ago
Both hypothyses i.e, complement mutations confering susceptibility to IgA as well as C3GN and IgA-Antidrug antibodies make intuitive sense. My case...
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RE: C3 or IgA 1 day ago
Ok, great ... So to summarize this case , with his CFHR5 mutation he is at risk for C3G and IgAN. Prior to Pegcetacoplan he manifested as C3G, and ...
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RE: C3 or IgA 1 day ago
It is very clear that CFHR5 mutations are associated with an INCREASED risk of both C3GN and IgAN. ------------------------------ Richard Glassoc...
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RE: C3 or IgA 1 day ago
He had a biopsy at 3 months and 6 months post transplant . He also got 1 dose Eculizumab, 1 week prior to the transplant and a second dose 2 weeks ...
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RE: C3 or IgA 1 day ago
Thanks for the follow-up. How long following kidney transplantation is follow up available. I would judge that there is a high risk of recurrence o...
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RE: C3 or IgA 1 day ago
I was under the same assumption as Dr. Balan. That is the generic mutations causing aHUS/C3 , were protective against IgA . These mutations are ver...
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RE: C3 or IgA 1 day ago
This patient had a successful kidney transplant . His post transplant biopsy is pristine , no IgA or C3 . On a regimen on Tac and MMF ------------...
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RE: C3 or IgA 2 days ago
Addendum- I Would probably stop the Pegacetocoplan and start MMF and moderate does of steroids or even Iptacopan. But who really knows how to treat...
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RE: C3 or IgA 2 days ago
This provides the Answer to your question. This mutation (CFHR5) is associated with an increased risk of BOTH C3GN and IgAN!!! Why the Pegacetocopl...
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RE: C3 or IgA 2 days ago
See attachments --------------------------------- Dr. Hormaz Dastoor. MD, FASN Nephrology Consultant - Seha Kidney Care. Nephrology Consulta...
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RE: Renal phosphate wasting 2 days ago
Another suggestion. If you are thinking of Albers Schonberg disease, (and which seems likely here), then please screen other family members as this...
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RE: C3 or IgA 2 days ago
What was the genetic variant in this patient? To add to the complexity, CHFR variants are known to protect against IgA nephropathy -------------...
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RE: C3 or IgA 2 days ago
I also suppose that in such counter-intuitive outcomes, a technical error needs to be given serious consideration. Time will tell. -------------...
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RE: C3 or IgA 2 days ago
Btw... The first 2 biopsies were done in the Kingdom of Bahrain, I did try to contact them but was unsuccessful . I could make another push though ...
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RE: C3 or IgA 2 days ago
Agree this is a strange and counter-intuitive outcome. All the more reason to pursue the cause with greater intensity and depth. Nature may be tryi...
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RE: C3 or IgA 2 days ago
This thread only has 2 cases , my patient with C3G had 3 biopsies --------------------------------- Dr. Hormaz Dastoor. MD, FASN Nephrology Consul...
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RE: C3 or IgA 2 days ago
Come to think of it , C3 inhibitors such as Pegcetacoplan are being trialled in IgA nephroapthy... So for them to cause igA deposits would be stran...
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RE: Initiating Statin In Dialysis Patient 2 days ago
For thosw who do not use the international units for various blood components, would be helpful to provide the values in amount/dL or L, or also pr...
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RE: C3 or IgA 2 days ago
Thinking out loud. How would the intial insult that led to C3 disease be followed by IgA qhich requires a first hit by the lymphoid tissue in the g...
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RE: Renal phosphate wasting 2 days ago
This is a very interesting case and I agree with Dr Glassock that the combination of what sounds like Osteopetrosis and phosphaturia suggests an Os...
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RE: C3 or IgA 2 days ago
The first approach would be to be to stain the post therapy biopsy with KN55 (anti-gdIgA) and the second would be to do Pronase digestion and Paraf...
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RE: C3 or IgA 2 days ago
I really don't have an answer ... was hoping for the forum to assist , as this case has been on my mind for a few months . ----------------------...
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RE: C3 or IgA 2 days ago
So are these cases examples of drug induced (Secondary) IgA deposit disease (not true de novo Primary IgAN)? I think this is very possible. Further...
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RE: C3 or IgA 2 days ago
The patient also had significant Generic mutations consistent with C3G. So am inclined to believe it's not Pseudo C3 deposits -------------------...
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RE: ANCA vasculitis with Pulmonary Hemorrhage - To Rituximab or MMF 2 days ago
Are you worried about RTX reactivating HBV with + anti-HBc antibody.? I am. ------------------------------ Richard Glassock MD, FASN Laguna Woo...
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RE: ANCA vasculitis with Pulmonary Hemorrhage - To Rituximab or MMF 2 days ago
Cr now normal after ritux steroids and plex for Pauci immune GN with pulmonary hemorrhage in setting of MULTIPLE infections. what is urinalysis n...
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RE: C3 or IgA 2 days ago
These are "ominous" findings. Is it possible that the apparent "de novo" IgAN represents an IgA antibody response to "planted"Pegacetocoplan or Ecu...
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RE: C3 or IgA 2 days ago
Unable to explain the reason but have observed the same in one of my patient, initial biopsy C3GN, second biopsy after treatment with Eculizumab, s...
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RE: Suspected Calciphylaxis in Young ESRD Patient - Start Treatment Without Biopsy? 3 days ago
Thank you all for the valuable and enriching discussion. We had a case of bilateral lower limb dry gangrene, and calciphylaxis was suspected, we d...
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RE: ANCA vasculitis with Pulmonary Hemorrhage - To Rituximab or MMF 3 days ago
Tough case. Judgement call. No data to support any particular regimen as best. MMF has been marginally effective in maintaining remission in AntiPR...
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RE: C3 or IgA 3 days ago
The patient had an URTI , followed be Nephrotic syndrome . First biopsy : had 30% IFTA ; Second Biopsy : had 40% IFTA The gap between the seco...
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RE: Initiating Statin In Dialysis Patient 3 days ago
Thanks . Not diabetic Cholesterol 4.9 mmol/l LDL 3 mmol/l Triglyceride 2.4 mmol/l Hdl 0.8 mmol/l --------------------------------- Muhammad Soob...
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RE: Recalcitrant severe hyponatremia 3 days ago
Thank you, Dr. Rodby, for your article. In it, 7 control and 8 hyponatremic psychiatric patients in the setting of a Clinical Research Center and r...
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RE: C3 or IgA 3 days ago
De novo IgAN following Pegacetocoplan therapy. I doubt it. Can you arrange for Pronase digestion and Paraffin IF on the prior two kidney biopsies.?...
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