1.Assessment of the phenotypic severity of hemophilia A: using rotational thromboelastometry (ROTEM) and APTT‑clot waveform analysis
Deepika GUPTA ; Vandana ARYA ; Jasmita DASS ; Nitin GUPTA ; Manas KALRA ; Anupam SACHDEVA ; Jyoti KOTWAL
Blood Research 2024;59():19-
Background:
Hemophilia A (HA) is an X-linked inherited bleeding disorder caused by reduced factor VIII (FVIII) levels.Approximately 10–15% of patients with severe HA (SHA) do not present with the anticipated bleeding pattern. Here, we assessed the phenotypic severity of hemophilia A using rotational thromboelastometry (ROTEM) and activated partial thromboplastin time-clot waveform analysis (APTT-CWA).
Methods:
Patients diagnosed with hemophilia A were enrolled. Clinical phenotype assignment was performed according to the published literature, and patients were classified into four phenotypic subgroups. The whole blood sample was first run on ROTEM in INTEM mode using platelet-poor plasma, APTT was run, and the APTT-CWA graph was simultaneously recorded.
Results:
A total of 66 patients were recruited for this study. Statistically significant differences were observed between the four phenotypically categorized groups using ROTEM and APTT-CWA. On comparing patients with mild/ moderate-to-severe phenotypes (Group II) with SHA without inhibitors (Group IV), no significant difference was found for all parameters of ROTEM or APTT-CWA. The MCF, MA30, MAXV, and Alpha angle values using ROTEM were found to be the lowest in patients with SHA with inhibitors, which helped differentiate them from those with SHA without inhibitors. However, these two groups could not be differentiated using the APTT-CWA parameters.
Conclusion
ROTEM can be used to distinguish patients with SHA with inhibitors from those with SHA without inhibitors using a combination of parameters with high sensitivity and specificity. However, APTT-CWA cannot be used to differentiate these patient groups.
2.Assessment of the phenotypic severity of hemophilia A: using rotational thromboelastometry (ROTEM) and APTT‑clot waveform analysis
Deepika GUPTA ; Vandana ARYA ; Jasmita DASS ; Nitin GUPTA ; Manas KALRA ; Anupam SACHDEVA ; Jyoti KOTWAL
Blood Research 2024;59():19-
Background:
Hemophilia A (HA) is an X-linked inherited bleeding disorder caused by reduced factor VIII (FVIII) levels.Approximately 10–15% of patients with severe HA (SHA) do not present with the anticipated bleeding pattern. Here, we assessed the phenotypic severity of hemophilia A using rotational thromboelastometry (ROTEM) and activated partial thromboplastin time-clot waveform analysis (APTT-CWA).
Methods:
Patients diagnosed with hemophilia A were enrolled. Clinical phenotype assignment was performed according to the published literature, and patients were classified into four phenotypic subgroups. The whole blood sample was first run on ROTEM in INTEM mode using platelet-poor plasma, APTT was run, and the APTT-CWA graph was simultaneously recorded.
Results:
A total of 66 patients were recruited for this study. Statistically significant differences were observed between the four phenotypically categorized groups using ROTEM and APTT-CWA. On comparing patients with mild/ moderate-to-severe phenotypes (Group II) with SHA without inhibitors (Group IV), no significant difference was found for all parameters of ROTEM or APTT-CWA. The MCF, MA30, MAXV, and Alpha angle values using ROTEM were found to be the lowest in patients with SHA with inhibitors, which helped differentiate them from those with SHA without inhibitors. However, these two groups could not be differentiated using the APTT-CWA parameters.
Conclusion
ROTEM can be used to distinguish patients with SHA with inhibitors from those with SHA without inhibitors using a combination of parameters with high sensitivity and specificity. However, APTT-CWA cannot be used to differentiate these patient groups.
3.Assessment of the phenotypic severity of hemophilia A: using rotational thromboelastometry (ROTEM) and APTT‑clot waveform analysis
Deepika GUPTA ; Vandana ARYA ; Jasmita DASS ; Nitin GUPTA ; Manas KALRA ; Anupam SACHDEVA ; Jyoti KOTWAL
Blood Research 2024;59():19-
Background:
Hemophilia A (HA) is an X-linked inherited bleeding disorder caused by reduced factor VIII (FVIII) levels.Approximately 10–15% of patients with severe HA (SHA) do not present with the anticipated bleeding pattern. Here, we assessed the phenotypic severity of hemophilia A using rotational thromboelastometry (ROTEM) and activated partial thromboplastin time-clot waveform analysis (APTT-CWA).
Methods:
Patients diagnosed with hemophilia A were enrolled. Clinical phenotype assignment was performed according to the published literature, and patients were classified into four phenotypic subgroups. The whole blood sample was first run on ROTEM in INTEM mode using platelet-poor plasma, APTT was run, and the APTT-CWA graph was simultaneously recorded.
Results:
A total of 66 patients were recruited for this study. Statistically significant differences were observed between the four phenotypically categorized groups using ROTEM and APTT-CWA. On comparing patients with mild/ moderate-to-severe phenotypes (Group II) with SHA without inhibitors (Group IV), no significant difference was found for all parameters of ROTEM or APTT-CWA. The MCF, MA30, MAXV, and Alpha angle values using ROTEM were found to be the lowest in patients with SHA with inhibitors, which helped differentiate them from those with SHA without inhibitors. However, these two groups could not be differentiated using the APTT-CWA parameters.
Conclusion
ROTEM can be used to distinguish patients with SHA with inhibitors from those with SHA without inhibitors using a combination of parameters with high sensitivity and specificity. However, APTT-CWA cannot be used to differentiate these patient groups.
4.Discovery and preclinical development of IIIM-160, a Bergenia ciliata-based anti-inflammatory and anti-arthritic botanical drug candidate.
Sandip B BHARATE ; Vikas KUMAR ; Sonali S BHARATE ; Bikarma SINGH ; Gurdarshan SINGH ; Amarinder SINGH ; Mehak GUPTA ; Deepika SINGH ; Ajay KUMAR ; Surjeet SINGH ; Ram A VISHWAKARMA
Journal of Integrative Medicine 2019;17(3):192-204
OBJECTIVE:
Bergenia ciliata (Haw.) Sternb. is used in the Indian traditional system of medicine to treat various ailments including rheumatism and to heal wounds. The objective of the present study was to perform a preclinical characterization of the B. ciliata-based botanical extract IIIM-160.
METHODS:
IIIM-160 was chemically standardized and analyzed for heavy metal content, aflatoxins, pesticides and microbial load. The in vitro and in vivo efficacies were determined in suitable models of inflammation, arthritis and nociception. An acute oral toxicity study was performed in Swiss albino mice. A suitable oral formulation was developed and characterized.
RESULTS:
Bergenin was found to be the major component (9.1% w/w) of IIIM-160. The botanical lead displayed inhibition of lipopolysaccharide-induced production of proinflammatory cytokines in THP-1 cells, with selectivity toward interleukin-6 (IL-6) and had an excellent safety-window. It showed anti-inflammatory, anti-arthritic and antinociceptive activity in animal models and was not toxic at oral doses up to 2 g/kg in Swiss-albino mice. The gastroretentive, sustained-release capsule formulation showed sustained-release of the bergenin over the period of 24 h, resulting in improved plasma-exposure of bergenin in Sprague-Dawley rats.
CONCLUSION
The dual-activity of IL-6 inhibition and antinociception marks the suitability of IIIM-160 for treating rheumatoid arthritis. This study will serve as the benchmark for further research on this botanical formulation.